16500220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{419}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 21602180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 419, 716, 838, 895, 1676, 1790, 1969, 2095, 3580, 3938, 4190, 4609, 7876, 8380, 9218, 9845, 18436, 19690, 23045, 39380, 46090, 75001, 92180, 150002, 300004, 375005, 750010, 825011, 1500020, 1650022, 3300044, 4125055, 8250110, 16500220]

約数ペア:

[(1, 16500220), (2, 8250110), (4, 4125055), (5, 3300044), (10, 1650022), (11, 1500020), (20, 825011), (22, 750010), (44, 375005), (55, 300004), (110, 150002), (179, 92180), (220, 75001), (358, 46090), (419, 39380), (716, 23045), (838, 19690), (895, 18436), (1676, 9845), (1790, 9218), (1969, 8380), (2095, 7876), (3580, 4609), (3938, 4190)]